definition of optic atrophy
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What Is Optic Atrophy? What Is Optic Atrophy? The optic nerve is a bundle of nerve fibers that carry images from your retina to your brain. Each fiber carries a part of the visual information to the brain. If these nerve fibers become damaged, the brain doesn't receive all of this vision information and sight becomes blurred. Optic atrophy means the loss of some or most of the nerve fibers in the optic nerve. The effects range from visual change to severe visual loss. Symptoms. Blurred vision; Abnormal side vision; Abnormal color vision; Decreased brightness in one eye relative to the other; The symptoms described above may not necessarily mean that you have optic atrophy.
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Top 20 Doctor insights on: Cerebellar Atrophy Prognosis Atrophy (Definition) Atrophy usually refers to the skin-as you get older or if you have had alot of sun in the past-the dermis (that is the layer below the top layer which is called the epidermis) gets thinner and the skin looks more wrinked. Muscles and fat can also get thinner -this is another form of atrophy.
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- Optic nerve damage is any kind of injury or damage to the optic nerve, including trauma, inflammation, disease or deterioration. Optic nerve damage is also called optic nerve atrophy or optic neuropathy. The optic nerve is the nerve that connects and transmits information between the eye and the brain.
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The Optic Nerve “Optic atrophy” of the optic disc (visible to an eye doctor looking inside the eye) is the result of degeneration of the nerve fibers of the optic nerve and optic tract. It can be congenital (usually hereditary) or acquired.
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Cerebral atrophy Cerebral atrophy is a common feature of many of the diseases that affect the brain. Atrophy of any tissue means a decrement in the size of the cell, which can be due to progressive loss of cytoplasmic proteins. In brain tissue, atrophy describes a loss of neurons and the connections between them. Atrophy can be generalized, which means that all of the brain has shrunk; or it can be focal, affecting only a limited area of the brain and resulting in a decrease of the functions that area of the brain controls.
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Glaucoma Glaucoma is the term applied to a group of eye diseases that gradually result in loss of vision by permanently damaging the optic nerve, the nerve that transmits visual images to the brain.
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Comprehensive, up-to-date information on HIV/AIDS treatment and prevention from the University of California San Francisco Optic neuritis (ON) is an inflammatory, demyelinating. condition that causes acute, usually monocular, visual. loss. It is highly associated with multiple sclerosis. (MS), occurring in 50% of the individuals at some time. during the course of their illness.1–4 Risk of developing.
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Leber hereditary optic atrophy Degeneration of the optic nerve and papillomacular bundle with resulting loss of central vision and blindness, which is progressive for several weeks, then usually becomes stationary with permanent central scotoma; the age of onset is variable, most often in the third decade; more males than females are affected.
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Cerebral Atrophy Cerebral atrophy is a common feature of many of the diseases that affect the brain. Atrophy of any tissue means loss of cells. In brain tissue, atrophy describes a loss of neurons and the connections between them.trophy of any tissue means loss of cells. In brain tissue, atrophy describes a loss of neurons and the connections between them.
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Atrophic Holes The fellow eye of patients with phakic rhegmatogenous retinal detachment from atrophic holes of lattice degeneration without posterior vitreous detachment. Br J Ophthalmol. 2004 Nov. 88(11):1400-2.
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Anisometropia Anisometropia is the condition in which the two eyes have unequal refractive power. Each eye can be nearsighted (myopia), farsighted (hyperopia) or a combination of both, which is called antimetropia. Generally a difference in power of two diopters or more is the accepted threshold to label the condition anisometropia.
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- Secondary optic atrophy. In conditions with secondary optic atrophy (eg, papilledema, papillitis), the atrophy is secondary to papilledema (shown in the image below). Optic nerve fibers exhibit marked degeneration, with excessive proliferation of glial tissue. The architecture is lost, resulting in indistinct margins.
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Background Optic atrophy is the final common morphologic endpoint of any disease process that causes axon degeneration in the retinogeniculate pathway. Clinically, optic atrophy manifests as changes in the color and the structure of the optic disc associated with variable degrees of visual dysfunction. News & Perspective Drugs & Diseases
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- Cerebral Atrophy: Cerebral atrophy is a condition characterized by a decrease in the size or a wasting away of brain cells and tissues. It may result from malnutrition, ...
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Atrophic Holes Atrophic retinal holes are full thickness retina breaks often existing in the peripheral retina. They are the result of atrophic changes within the sensory retina that are not induced by vitreous adhesions. Often, these lesions are found in association with lattice degeneration.
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Muscle atrophy Muscle atrophy. [edit on Wikidata] Muscle atrophy is defined as a decrease in the mass of the muscle; it can be a partial or complete wasting away of muscle, and is most commonly experienced when persons suffer temporary disabling circumstances such as being restricted in movement and/or confined to bed as when hospitalized. When a muscle atrophies, this leads to muscle weakness, since the ability to exert force is related to mass. Modern medicine's understanding of the quick onset of muscle atrophy is a major factor behind the p
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Muscle atrophy Muscle atrophy is defined as a decrease in the mass of the muscle; it can be a partial or complete wasting away of muscle, and is most commonly experienced when persons suffer temporary disabling circumstances such as being restricted in movement and/or confined to bed as when hospitalized.
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Background Optic atrophy is the final common morphologic endpoint of any disease process that causes axon degeneration in the retinogeniculate pathway. Clinically, optic atrophy manifests as changes in the color and the structure of the optic disc (cupping) associated with variable degrees of visual dysfunction. The term atrophy is actually a misnomer, since, in its strict histologic definition, means involution of a structure due to prolonged disuse.
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Optic Atrophy Disease Entity. Optic atrophy refers to the death of the retinal ganglion cell axons that comprise the optic nerve with the resulting picture of a pale optic nerve on funduscopy. Optic atrophy is an end stage that arises from myriad causes of optic nerve damage anywhere along the path from the retina to the lateral geniculate.
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- Full Definition of ATROPHY. 1. : decrease in size or wasting away of a body part or tissue; also: arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant. 2.— atro·phic \(ˌ)ā-ˈtrō-fik\ adjective.— atrophy \ˈa-trə-fē, -ˌfī\ verb.See atrophy defined for English-language learners.. : decrease in size or wasting away of a body part or tissue; also: arrested development or loss of a part or organ incidental to the normal development or life of an animal or plant.
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Should computer software be classified as an intangible asset or part of property, plant and equipment? In accounting terms, an intangible asset is something of value that is not of physical nature. On the other hand, property, plant and equipment (PPE) are just as the name suggests. PPE refers to physical long-term assets, such equipment that is vital to a company's operations and has a definite physical component.
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Overview Vaginal atrophy. Overview. Vaginal atrophy (atrophic vaginitis) is thinning, drying and inflammation of the vaginal walls due to your body having less estrogen. Vaginal atrophy occurs most often after menopause. For many women, vaginal atrophy not only makes intercourse painful, but also leads to distressing urinary symptoms.
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ATROPHY (atrophied) The noun ATROPHY has 2 senses: 1. a decrease in size of an organ caused by disease or disuse. 2. any weakening or degeneration (especially through lack of use). Familiarity information: ATROPHY used as a noun is rare. • ATROPHY (verb). The verb ATROPHY has 1 sense: 1. undergo atrophy. Familiarity information: ATROPHY used as a verb is very rare.
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Progressive muscular atrophy Progressive muscular atrophy: Introduction. Progressive muscular atrophy: A condition which is characterized by painless, degenerative myopathies. More detailed information about the symptoms, causes, and treatments of Progressive muscular atrophy is available below. Symptoms of Progressive muscular atrophy.
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What Are the Causes of Brain Atrophy? Brain atrophy is shrinking of the brain caused by the loss of its cells, called neurons. Two types of brain atrophy can occur; generalized and focal. Generalized atrophy refers to neuron loss throughout the entire brain, and focal atrophy refers to neuron loss in a specific brain region.
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SENILE MIOSIS a reduction in the size of a person's pupil in old age caused by muscle atrophy that control dilation of a pupil. This restricts the amount of light to fall on retina. SENILE MIOSIS: Senile meiosis is seen in older people with atrophy of the muscles that control the pupil.. No related posts.